My HDD (500GB) that came with my trusy 3 year old Macbook Pro crashed a few days ago. Luckily I have a Time Machine backup setup with Time Capsule. Bought a new SSD (240GB) for the MBP and tried restoring directly from the backup However this didn't work (because the SSD is smaller than my old HDD) and I ended up installing a fresh copy of Mountain Lion. After installation I successfully used migration assistant to transfer all the files and preferences from the Time Capsule. Everything good so far. Except I've been having permission errors and preferences not saving. Dropbox doesn't start up quoting a permanent error. Google Chrome extensions keep reinstalling. And a myriad of such issues. If it's a preferences problem how can I solve it? I've tried setting the Sharing and Permissions for the following (including their enclosed items) ~/ ~/Library But no luck at all. And lots of files seemed to be locked as well. Including those inside ~/Library What's going on? How do I fix this? Please reply.